Author: Alanna Mitchell
Publisher: Penguin
ISBN: 1101985186
Category : Science
Languages : en
Pages : 342
Book Description
The mystery of Earth's invisible, life-supporting power Alanna Mitchell's globe-trotting history of the science of electromagnetism and the Earth's magnetic field--right up to the latest indications that the North and South Poles may soon reverse, with apocalyptic results--will soon change the way you think about our planet. Award-winning journalist Alanna Mitchell's science storytelling introduce intriguing characters--from the thirteenth-century French investigations into magnetism and the Victorian-era discover that electricity and magnetism emerge from the same fundamental force to the latest research. No one has ever told so eloquently how the Earth itself came to be seen as a magnet, spinning in space with two poles, and that those poles have dramatically reversed many time, often coinciding with mass extinctions. The most recent reversal was 780,000 years ago. Mitchell explores indications that the Earth's magnetic force field is decaying faster than previously thought. When the poles switch, a process that takes many years, the Earth is unprotected from solar radiation storms that would, among other disturbances, wipe out much and possible all of our electromagnetic technology. Navigation for all kinds of animals is disrupted without a stable, magnetic North Pole. But can you imagine no satellites, no Internet, no smartphones--maybe no power grids at all? Alanna Mitchell offers a beautifully crafted narrative history of surprising ideas and science, illuminating invisible parts of our own planet that are constantly changing around us.
The Spinning Magnet
Author: Alanna Mitchell
Publisher: Penguin
ISBN: 1101985186
Category : Science
Languages : en
Pages : 342
Book Description
The mystery of Earth's invisible, life-supporting power Alanna Mitchell's globe-trotting history of the science of electromagnetism and the Earth's magnetic field--right up to the latest indications that the North and South Poles may soon reverse, with apocalyptic results--will soon change the way you think about our planet. Award-winning journalist Alanna Mitchell's science storytelling introduce intriguing characters--from the thirteenth-century French investigations into magnetism and the Victorian-era discover that electricity and magnetism emerge from the same fundamental force to the latest research. No one has ever told so eloquently how the Earth itself came to be seen as a magnet, spinning in space with two poles, and that those poles have dramatically reversed many time, often coinciding with mass extinctions. The most recent reversal was 780,000 years ago. Mitchell explores indications that the Earth's magnetic force field is decaying faster than previously thought. When the poles switch, a process that takes many years, the Earth is unprotected from solar radiation storms that would, among other disturbances, wipe out much and possible all of our electromagnetic technology. Navigation for all kinds of animals is disrupted without a stable, magnetic North Pole. But can you imagine no satellites, no Internet, no smartphones--maybe no power grids at all? Alanna Mitchell offers a beautifully crafted narrative history of surprising ideas and science, illuminating invisible parts of our own planet that are constantly changing around us.
Publisher: Penguin
ISBN: 1101985186
Category : Science
Languages : en
Pages : 342
Book Description
The mystery of Earth's invisible, life-supporting power Alanna Mitchell's globe-trotting history of the science of electromagnetism and the Earth's magnetic field--right up to the latest indications that the North and South Poles may soon reverse, with apocalyptic results--will soon change the way you think about our planet. Award-winning journalist Alanna Mitchell's science storytelling introduce intriguing characters--from the thirteenth-century French investigations into magnetism and the Victorian-era discover that electricity and magnetism emerge from the same fundamental force to the latest research. No one has ever told so eloquently how the Earth itself came to be seen as a magnet, spinning in space with two poles, and that those poles have dramatically reversed many time, often coinciding with mass extinctions. The most recent reversal was 780,000 years ago. Mitchell explores indications that the Earth's magnetic force field is decaying faster than previously thought. When the poles switch, a process that takes many years, the Earth is unprotected from solar radiation storms that would, among other disturbances, wipe out much and possible all of our electromagnetic technology. Navigation for all kinds of animals is disrupted without a stable, magnetic North Pole. But can you imagine no satellites, no Internet, no smartphones--maybe no power grids at all? Alanna Mitchell offers a beautifully crafted narrative history of surprising ideas and science, illuminating invisible parts of our own planet that are constantly changing around us.
Magnet Power!
Author: Thomas Kingsley Troupe
Publisher: Capstone
ISBN: 1404879722
Category : Juvenile Nonfiction
Languages : en
Pages : 26
Book Description
Learn all about magnets with MAG-3000, the origami robot, who is on a mission to fix and restore Star City.
Publisher: Capstone
ISBN: 1404879722
Category : Juvenile Nonfiction
Languages : en
Pages : 26
Book Description
Learn all about magnets with MAG-3000, the origami robot, who is on a mission to fix and restore Star City.
Magnet Power
Author: Silverman
Publisher: Carson-Dellosa Publishing
ISBN: 1612366651
Category : Juvenile Nonfiction
Languages : en
Pages : 28
Book Description
Early Readers Investigate Magnets.
Publisher: Carson-Dellosa Publishing
ISBN: 1612366651
Category : Juvenile Nonfiction
Languages : en
Pages : 28
Book Description
Early Readers Investigate Magnets.
Scientific Researches, Experimental and Theoretical, in Electricity, Magnetism, Galvanism, Electro-magnetism, and Electro-chemistry
Author: William Sturgeon
Publisher:
ISBN:
Category : Electricity
Languages : en
Pages : 662
Book Description
Publisher:
ISBN:
Category : Electricity
Languages : en
Pages : 662
Book Description
Magnetism and Electricity
Author: Arthur William Poyser
Publisher:
ISBN:
Category : Electricity
Languages : en
Pages : 420
Book Description
Publisher:
ISBN:
Category : Electricity
Languages : en
Pages : 420
Book Description
Power Magnetic Devices
Author: Scott D. Sudhoff
Publisher: John Wiley & Sons
ISBN: 9781118489994
Category : Science
Languages : en
Pages : 0
Book Description
Presents a multi-objective design approach to the many power magnetic devices in use today Power Magnetic Devices: A Multi-Objective Design Approach addresses the design of power magnetic devices—including inductors, transformers, electromagnets, and rotating electric machinery—using a structured design approach based on formal single- and multi-objective optimization. The book opens with a discussion of evolutionary-computing-based optimization. Magnetic analysis techniques useful to the design of all the devices considered in the book are then set forth. This material is then used for inductor design so readers can start the design process. Core loss is next considered; this material is used to support transformer design. A chapter on force and torque production feeds into a chapter on electromagnet design. This is followed by chapters on rotating machinery and the design of a permanent magnet AC machine. Finally, enhancements to the design process including thermal analysis and AC conductor losses due to skin and proximity effects are set forth. Power Magnetic Devices: Focuses on the design process as it relates to power magnetic devices such as inductors, transformers, electromagnets, and rotating machinery Offers a structured design approach based on single- and multi-objective optimization Helps experienced designers take advantage of new techniques which can yield superior designs with less engineering time Provides numerous case studies throughout the book to facilitate readers’ comprehension of the analysis and design process Includes Powerpoint-slide-based student and instructor lecture notes and MATLAB-based examples, toolboxes, and design codes Designed to support the educational needs of students, Power Magnetic Devices: A Multi-Objective Design Approach also serves as a valuable reference tool for practicing engineers and designers. MATLAB examples are available via the book support site.
Publisher: John Wiley & Sons
ISBN: 9781118489994
Category : Science
Languages : en
Pages : 0
Book Description
Presents a multi-objective design approach to the many power magnetic devices in use today Power Magnetic Devices: A Multi-Objective Design Approach addresses the design of power magnetic devices—including inductors, transformers, electromagnets, and rotating electric machinery—using a structured design approach based on formal single- and multi-objective optimization. The book opens with a discussion of evolutionary-computing-based optimization. Magnetic analysis techniques useful to the design of all the devices considered in the book are then set forth. This material is then used for inductor design so readers can start the design process. Core loss is next considered; this material is used to support transformer design. A chapter on force and torque production feeds into a chapter on electromagnet design. This is followed by chapters on rotating machinery and the design of a permanent magnet AC machine. Finally, enhancements to the design process including thermal analysis and AC conductor losses due to skin and proximity effects are set forth. Power Magnetic Devices: Focuses on the design process as it relates to power magnetic devices such as inductors, transformers, electromagnets, and rotating machinery Offers a structured design approach based on single- and multi-objective optimization Helps experienced designers take advantage of new techniques which can yield superior designs with less engineering time Provides numerous case studies throughout the book to facilitate readers’ comprehension of the analysis and design process Includes Powerpoint-slide-based student and instructor lecture notes and MATLAB-based examples, toolboxes, and design codes Designed to support the educational needs of students, Power Magnetic Devices: A Multi-Objective Design Approach also serves as a valuable reference tool for practicing engineers and designers. MATLAB examples are available via the book support site.
Physics for Scientists and Engineers, Volume 2: Electricity, Magnetism, Light, and Elementary Modern Physics
Author: Paul Allen Tipler
Publisher: Macmillan
ISBN: 9780716708100
Category : Physics
Languages : en
Pages : 806
Book Description
Publisher: Macmillan
ISBN: 9780716708100
Category : Physics
Languages : en
Pages : 806
Book Description
Electricity and magnetism
Author: Augustin Privat-Deschanel
Publisher:
ISBN:
Category : Physics
Languages : en
Pages : 302
Book Description
Publisher:
ISBN:
Category : Physics
Languages : en
Pages : 302
Book Description
Power and the Engineer
Author:
Publisher:
ISBN:
Category : Machinery
Languages : en
Pages : 1048
Book Description
Publisher:
ISBN:
Category : Machinery
Languages : en
Pages : 1048
Book Description
Specifications and Drawings of Patents Relating to Electricity
Author:
Publisher:
ISBN:
Category : Electric apparatus and appliances
Languages : en
Pages : 1278
Book Description
Publisher:
ISBN:
Category : Electric apparatus and appliances
Languages : en
Pages : 1278
Book Description